1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
% if float_type == 'double':
#if defined(cl_khr_fp64)
#pragma OPENCL EXTENSION cl_khr_fp64 : enable
#elif defined(cl_amd_fp64)
#pragma OPENCL EXTENSION cl_amd_fp64 : enable
#endif
% endif
__kernel void equilibrilize(__global ${float_type}* f_next,
__global ${float_type}* f_prev)
{
const unsigned int gid = ${layout.gid()};
__global ${float_type}* preshifted_f_next = f_next + gid;
__global ${float_type}* preshifted_f_prev = f_prev + gid;
% for i, w_i in enumerate(descriptor.w):
preshifted_f_next[${layout.pop_offset(i)}] = ${w_i}.f;
preshifted_f_prev[${layout.pop_offset(i)}] = ${w_i}.f;
% endfor
}
__kernel void collide_and_stream(__global ${float_type}* f_next,
__global ${float_type}* f_prev,
__global int* material,
unsigned int time)
{
const unsigned int gid = ${layout.gid()};
const int m = material[gid];
if ( m == 0 ) {
return;
}
__global ${float_type}* preshifted_f_next = f_next + gid;
__global ${float_type}* preshifted_f_prev = f_prev + gid;
% for i, c_i in enumerate(descriptor.c):
const ${float_type} f_curr_${i} = preshifted_f_prev[${layout.pop_offset(i) + layout.neighbor_offset(-c_i)}];
% endfor
% for i, expr in enumerate(moments_subexpr):
const ${float_type} ${expr[0]} = ${ccode(expr[1])};
% endfor
% for i, expr in enumerate(moments_assignment):
${float_type} ${ccode(expr)}
% endfor
${boundary_src}
% for i, expr in enumerate(collision_subexpr):
const ${float_type} ${expr[0]} = ${ccode(expr[1])};
% endfor
% for i, expr in enumerate(collision_assignment):
const ${float_type} ${ccode(expr)}
% endfor
% for i in range(0,descriptor.q):
preshifted_f_next[${layout.pop_offset(i)}] = f_next_${i};
% endfor
}
__kernel void collect_moments(__global ${float_type}* f,
__global ${float_type}* moments)
{
const unsigned int gid = ${layout.gid()};
__global ${float_type}* preshifted_f = f + gid;
% for i in range(0,descriptor.q):
const ${float_type} f_curr_${i} = preshifted_f[${layout.pop_offset(i)}];
% endfor
% for i, expr in enumerate(moments_subexpr):
const ${float_type} ${expr[0]} = ${ccode(expr[1])};
% endfor
% for i, expr in enumerate(moments_assignment):
moments[${layout.pop_offset(i)} + gid] = ${ccode(expr.rhs)};
% endfor
}
|